1 files changed, 39 insertions, 0 deletions
diff --git a/layout/reftests/async-scrolling/dynamic-toolbar-sticky-1-ref.html b/layout/reftests/async-scrolling/dynamic-toolbar-sticky-1-ref.html
new file mode 100644
index 0000000000..ebb7972d3a
--- /dev/null
+++ b/layout/reftests/async-scrolling/dynamic-toolbar-sticky-1-ref.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<meta name="viewport" content="width=device-width">
+<style>
+html, body {
+    margin: 0;
+    scrollbar-width: none;
+}
+.spacer {
+    height: 100vh;
+    background-color: green;
+}
+.sticky_bottom {
+    position: relative;
+    top: calc(-50px - 20px + 10px);
+    height: 50px;
+    background-color: blue;
+    opacity: 50%;
+}
+.sticky_both {
+    position: relative;
+    top: calc(-100px - 20px + 10px);
+    height: 50px;
+    background-color: purple;
+    opacity: 50%;
+}
+.sticky_top {
+    height: 50px;
+    background-color: red;
+    opacity: 50%;
+}
+</style>
+<div class="spacer"></div>
+<div class="sticky_bottom"></div>
+<div class="sticky_both"></div>
+<div class="sticky_top"></div>
+<div class="spacer"></div>
+<script>
+document.scrollingElement.scrollTop = 10;
+</script>